Which type of cell is typically used where limited current is required?

The primary cell is designed for applications where limited current is required and is not rechargeable. It provides a steady voltage output for a specific duration until the chemical reactants are depleted. This type of cell is commonly found in devices that have low power demands, such as remote controls, flashlights, and small electronic gadgets.

Primary cells utilize irreversible chemical reactions to produce electricity, making them suitable for applications where long shelf life and reliability are essential, but frequent recharging is not practical or necessary. These cells are simple to use and generally more convenient for situations where power needs are minimal and downtime for recharging would be impractical.

In contrast, secondary cells, also known as rechargeable batteries, are used in applications that require higher currents over extended periods or that benefit from the ability to recharge. Wet cells refer to a specific type of secondary battery that uses liquid electrolytes, which may not be as suitable for low-current applications due to their more complex care and maintenance requirements. The term "supercell" is not commonly used in standard terminology regarding batteries and does not refer to a recognized type of cell in typical power applications.

Thus, the primary cell is indeed the most appropriate answer for situations involving limited current requirements.